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When a piece of metal is illuminated by a monochromatic light of wavelength λ, then stopping potential is 3Vs. When same surface is illuminated by light of wavelength 2λ, then stopping potential becomes Vs. The value of threshold wavelength for photoelectric emission will be
Options
(a) (4λ)/3
(b) 6λ
(c) 4λ
(d) 8λ
Correct Answer:
4λ
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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(150)
Subject: Physics
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- A comb run through one’s dry hair attracts small bits of paper. This is due to
- A p-n photodiode is made of a material with a band gap of 2.0 eV
- When 10¹⁹elecrons are removed from a neutral metal plate through some process,
- A particle under the action of a constant force moves from rest upto 20 seconds
- A planet in a distinct solar system is 10 times more massive than the earth
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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